<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>for...in</title>
	<script type="text/javascript">
		var cars=["Audi","Volvo","BMW","BenZ"]
		for(var i in cars)
		{
			document.write(cars[i]+"<br/>");
		}
	</script>

</head>

<body>
</body>
</html>
